LI Dian-sen, LU Zi-xing, LU Wen-shu. Theoretical Prediction of the Stiffness and Strength of Three-Dimensional and Four-Directional Braided Composites[J]. Applied Mathematics and Mechanics, 2008, 29(2): 149-156.
 Citation: LI Dian-sen, LU Zi-xing, LU Wen-shu. Theoretical Prediction of the Stiffness and Strength of Three-Dimensional and Four-Directional Braided Composites[J]. Applied Mathematics and Mechanics, 2008, 29(2): 149-156.

# Theoretical Prediction of the Stiffness and Strength of Three-Dimensional and Four-Directional Braided Composites

• Received Date: 2007-08-29
• Rev Recd Date: 2008-01-07
• Publish Date: 2008-02-15
• Based on unit cell model,the 3D 4-directional braided composites can be simplified as unidirectional composites with different local axial coordinate system and the compliance matrix of unidirectional composites can be defined utilizing the bridge model.The total stiffness matrix of braided composites can be obtained by the volume average stiffness of unidirectional composites with different local axial coordinate systems and the engineering elastic constants of braided composites were computed further.Based on the iso-strain assumption and the bridge model,the stress distribution of fiber bundle and matrix of different unidirectional composites can be determined and the tensile strength of 3D 4-directional braided composites was predicted by means of the Hoffman.s failure criterion for the fiber bundle and Mises.failure criterion for the matrix.
•  [1] Ma C L, Yang J M, Chou T W. Elastic stiffness of three-dimensional braided textile structural composites[A].ASTM,STP893.In:Composite Materials: Testing and Design[C].Philadelphia: American Society for Testing Material, 1986, 404-421. [2] Chen L, Tao X M, Choy C L.Mechanical analysis of 3-D braided composites by the finite multiphase element method[J].Composites Science and Technology,1999,59(3):2383-2391. [3] SUN Xue-kun, SUN Chang-jie. Mechanical properties of three-dimensional braided composites[J].Composite Structures,2004,65(3/4):485-492. [4] 孙慧玉, 吴长春, 卞恩荣.三维编织复合材料面内刚度和强度性能研究[J].复合材料学报，1998,15(4):102-106. [5] 卢子兴, 刘振国, 麦汉超,等. 三维编织复合材料强度的数值预报[J].北京航空航天大学学报，2002,28(5):563-565. [6] GU Bo-hong.Prediction of the uniaxial tensile curve of 4-step 3-dimensional braided perform[J].Composite Structures,2004,64(2):235-241. [7] 左惟炜，肖来元，廖道训.Tsai-Wu准则用于三维编织复合材料矩形梁强度计算[J]. 华中科技大学学报，2006,34(12):74-76. [8] 董纪伟,孙良新,洪平. 基于均匀化理论的三维编织复合材料细观应力数值模拟[J].复合材料学报,2005,22(6):139-143. [9] HUANG Zheng-ming. A bridging model prediction of the ultimate strength of composite laminates subjected to biaxial loads[J].Composites Science and Technology,2004,64(3/4):395-448. [10] 黄争鸣. 复合材料细观力学引论[M].北京：科学出版社, 2004. [11] 李典森, 卢子兴，陈利,等.三维六向编织复合材料弹性性能理论预测[J].复合材料学报，2006,23(4):112-118. [12] 杨振宇，卢子兴. 三维四向编织复合材料弹性性能的理论预测[J]. 复合材料学报，2004,21(2):134-141. [13] 卢子兴, 冯志海, 寇长河，等. 编织复合材料拉伸力学性能的研究[J].复合材料学报，1999,16(3):129-134.

### Catalog

###### 通讯作者: 陈斌, bchen63@163.com
• 1.

沈阳化工大学材料科学与工程学院 沈阳 110142

## Article Metrics

Article views (2538) PDF downloads(680) Cited by()
###### Related

/

DownLoad:  Full-Size Img  PowerPoint